What happened to rap music?

It seems people got tired of the attitude:

Rap has been deserted by many white fans and middle-class blacks, apparently tiring of the "gangsta" attitude to women, racism, violence and bling - the gold rings and medallions that have made hip-hop a byword for -vulgarity.

"The public has made a choice. They're saying, 'We do not want the nonsense that we see and hear on radio, and we are not putting our money there'," said KRS-One, a rap legend from the Bronx. "Rap music is being boycotted by the American public because of the images that we are putting forward."

So the "more speech"/free market approach to offensive speech works?